大约有 35,100 项符合查询结果(耗时:0.0439秒) [XML]
Exception thrown inside catch block - will it be caught again?
This may seem like a programming 101 question and I had thought I knew the answer but now find myself needing to double check. In this piece of code below, will the exception thrown in the first catch block then be caught by the general Exception catch block below?
...
CSS: 100% width or height while keeping aspect ratio?
...eyond what you want.
If an image is 100% wide and height:auto and you think it's too tall, that is specifically because the aspect ratio is preserved. You'll need to crop, or to change the aspect ratio.
Please provide some more information about what you're specifically trying to accomplish and I'...
How can mixed data types (int, float, char, etc) be stored in an array?
...
You can make the array elements a discriminated union, aka tagged union.
struct {
enum { is_int, is_float, is_char } type;
union {
int ival;
float fval;
char cval;
} val;
} my_array[10];
The type ...
Android WebView: handling orientation changes
...edited Jul 5 '17 at 19:56
Vadim Kotov
6,57788 gold badges4343 silver badges5555 bronze badges
answered Feb 11 '10 at 18:10
...
Should I inherit from std::exception?
I've seen at least one reliable source (a C++ class I took) recommend that application-specific exception classes in C++ should inherit from std::exception . I'm not clear on the benefits of this approach.
...
Getting the thread ID from a thread
...
GetThreadId returns the ID of a given native thread. There are ways to make it work with managed threads, I'm sure, all you need to find is the thread handle and pass it to that function.
GetCurrentThreadId returns the ID of the current thread.
GetCurrentThreadId has been deprecated as of .NET ...
Ruby: Calling class method from instance
... answered Mar 27 '10 at 2:33
Mark RushakoffMark Rushakoff
214k3737 gold badges383383 silver badges383383 bronze badges
...
How to overwrite the previous print to stdout in python?
...te your final output.
Update
Now that Python 2 is EOL, a Python 3 answer makes more sense. For Python 3.5 and earlier:
for x in range(10):
print('{}\r'.format(x), end="")
print()
In Python 3.6 and later, f-strings read better:
for x in range(10):
print(f'{x}\r', end="")
print()
Of course, ...
How can I avoid running ActiveRecord callbacks?
I have some models that have after_save callbacks. Usually that's fine, but in some situations, like when creating development data, I want to save the models without having the callbacks run. Is there a simple way to do that? Something akin to...
...
Should enums in C# have their own file? [closed]
...
James CurranJames Curran
93.3k3434 gold badges169169 silver badges251251 bronze badges
...